CN212155449U

CN212155449U - Gearbox seal bearing

Info

Publication number: CN212155449U
Application number: CN201922448656.0U
Authority: CN
Inventors: 侯利昌; 丁小玄
Original assignee: Wujiang Ouchuang Electromechanical Co ltd
Current assignee: Wujiang Ouchuang Electromechanical Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-12-15
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a gearbox seal bearing, including overcoat, first sealed pad and endotheca, the overcoat is located the endotheca outside, first sealed pad is located between overcoat and endotheca, first connecting groove has all been seted up to overcoat inner wall both sides, first connecting groove inner wall is provided with first sealing ring, second connecting groove has all been seted up to endotheca outer wall both sides, second connecting groove inner wall is provided with the second sealing ring, first sealed pad outer wall has seted up first seal groove, first sealed pad outer wall is located first connecting groove inside, first sealing ring is located first seal groove inside, first sealed pad inner wall has seted up the second seal groove, first sealed pad inner wall is located the second connecting groove inside, the second sealing ring is located the second seal groove inside; through install first sealed pad additional between overcoat and endotheca, effectively avoid in the lubricating oil easy entering bearing of suspended foreign matter inside, promoted bearing life.

Description

Gearbox seal bearing

Technical Field

The utility model belongs to the technical field of the bearing, concretely relates to gearbox seal bearing.

Background

The automobile gearbox requires low noise, high output power and lower maintenance frequency, wherein a bearing is an important part for ensuring the smooth operation of the gearbox under the conditions, the service life of a rolling bearing is analyzed, and the service life of the rolling bearing is generally lower than the rated fatigue life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gearbox seal bearing to it is not good to provide its sealing ring seal effect of antifriction bearing in the traditional gearbox among the above-mentioned background art of solution, and the problem that causes rolling element surface destruction is got into easily to the suspended foreign matter in the lubricating oil.

In order to achieve the above object, the utility model provides a following technical scheme: a sealed bearing of a gearbox comprises an outer sleeve, a first sealing gasket and an inner sleeve, wherein the outer sleeve is positioned outside the inner sleeve, the first sealing gasket is positioned between the outer sleeve and the inner sleeve, first connecting grooves are formed in two sides of the inner wall of the outer sleeve, a first sealing ring is arranged on the inner wall of the first connecting groove, second connecting grooves are formed in two sides of the outer wall of the inner sleeve, a second sealing ring is arranged on the inner wall of the second connecting groove, a first sealing groove is formed in the outer wall of the first sealing gasket, the outer wall of the first sealing gasket is positioned in the first connecting groove, the first sealing ring is positioned in the first sealing groove, a second sealing groove is formed in the inner wall of the first sealing gasket, the inner wall of the first sealing gasket is positioned in the second connecting groove, a first elastic sheet and a second elastic sheet are respectively arranged in the first sealing, the first elastic piece is located on one side of the second elastic piece, and fixing pieces are arranged at two ends of the first elastic piece and two ends of the second elastic piece.

Preferably, first fixed slot has been seted up to the overcoat outer wall, the second fixed slot has been seted up to first fixed slot bottom, the filling opening has been seted up to second fixed slot bottom, first fixed slot bottom sets up the sealed pad of third, the sealed third seal groove has been seted up on the sealed top surface of third, first fixed slot bottom is provided with the sealed pad of second, first fixed slot is inside to be provided with sealing nut, sealing nut bottom is provided with sealing screw and third sealing ring respectively, sealing screw is located the third sealing ring inboard, the third sealing ring is located inside the third seal groove, sealing screw is located inside the second fixed slot.

Preferably, first sealing ring and overcoat fixed connection, first sealing ring is closely laminated with first sealed pad through first seal groove.

Preferably, the second sealing ring is fixedly connected with the inner sleeve, and the second sealing ring is tightly attached to the first sealing gasket through a second sealing groove.

Preferably, the first elastic piece and the second elastic piece are both fixedly connected with the fixing piece, and the length of the first elastic piece is one point and one time of the length of the second elastic piece.

Preferably, one side of the inner wall of the first sealing gasket is an inclined plane, and one side of the inner wall of the second sealing ring is an inclined plane.

Preferably, the third sealing gasket is fixedly connected with the first fixing groove, the inner diameter of the third sealing gasket is consistent with that of the second fixing groove, the second sealing gasket is fixedly connected with the second fixing groove, and the inner diameter of the second sealing gasket is consistent with that of the injection port.

Preferably, third sealing ring and sealing screw all with sealing nut fixed connection, sealing screw passes through screw thread and second fixed slot fixed connection, sealing nut passes through the sealed pad of third and closely laminates with first fixed slot, sealing screw passes through the sealed pad of second and closely laminates with the second fixed slot.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) by additionally arranging the first sealing gasket between the outer sleeve and the inner sleeve, when the first sealing gasket needs to be installed, the first sealing gasket is moved, the first sealing groove is driven by the first sealing gasket to move, the outer wall of the first sealing gasket is placed in the first connecting groove, the first sealing groove is aligned to the first sealing ring, after the first sealing gasket is installed, the inner wall of the first sealing gasket is moved, the second sealing groove is driven by the first sealing gasket to move, the inner wall of the first sealing gasket is placed in the second connecting groove, when the inclined surface at one side of the inner wall of the first sealing gasket is contacted with the inclined surface at one side of the inner wall of the second sealing gasket, the first sealing gasket is pressed, the first sealing gasket is deformed under the action of the inclined surface and force, the first sealing gasket drives the first elastic sheet and the second elastic sheet to deform simultaneously, when the first sealing gasket slides sideways on the second sealing ring, and the second sealing groove is contacted with the, under the elastic action of first flexure strip and second flexure strip, make first flexure strip and second flexure strip drive first sealed pad and reset, make the first sealed inner wall of filling up tightly laminate with the second spread groove, first sealed outer wall of filling up tightly laminates with first spread groove, the second seal groove tightly laminates with the second seal ring, first seal ring tightly laminates with first seal groove, under the effect of first flexure strip and second flexure strip, it connects the leakproofness to have promoted between first sealed pad and overcoat and the endotheca, effectively avoid in the lubricating oil easy entering bearing of suspended foreign matter inside, bearing life has been promoted.

(2) Through offering first fixed slot on outer cover outer wall surface, when needs are to bearing inside lubricating oil addition, need lift sealing screw off earlier, rotate sealing nut with extracting tool, drive sealing screw by sealing nut and rotate, sealing screw is under the screw thread effect, make sealing screw constantly rise, when sealing screw leaves second fixed slot inside completely, accomplish the dismantlement to sealing screw, then fill in oiling pipe inside the second fixed slot again, inside lubricating oil gets into the bearing through the filling opening, the operation is accomplished, the staff of having convenient for adds lubricating oil to the bearing.

Drawings

Fig. 1 is a schematic view of the bearing structure of the present invention;

FIG. 2 is an enlarged view of a portion a of FIG. 1;

FIG. 3 is an enlarged view of the structure at b in FIG. 1;

FIG. 4 is an enlarged view of the structure at c in FIG. 1;

FIG. 5 is an enlarged view of the structure at d in FIG. 4;

fig. 6 is a schematic structural view of the sealing nut of the present invention;

in the figure: 1. a jacket; 2. an inner sleeve; 3. a first gasket; 4. a first connecting groove; 5. a first seal ring; 6. a first seal groove; 7. a first elastic sheet; 8. a fixing sheet; 9. a second elastic sheet; 10. a second connecting groove; 11. a second seal groove; 12. a second seal ring; 13. a first fixing groove; 14. a second fixing groove; 15. a sealing nut; 16. sealing the screw rod; 17. an injection port; 18. a second gasket; 19. a third seal groove; 20. a third seal ring; 21. and a third gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a sealed bearing of a gearbox comprises an outer sleeve 1, a first sealing gasket 3 and an inner sleeve 2, wherein the outer sleeve 1 is positioned outside the inner sleeve 2, the first sealing gasket 3 is positioned between the outer sleeve 1 and the inner sleeve 2, both sides of the inner wall of the outer sleeve 1 are respectively provided with a first connecting groove 4, the inner wall of the first connecting groove 4 is provided with a first sealing ring 5, both sides of the outer wall of the inner sleeve 2 are respectively provided with a second connecting groove 10, the inner wall of the second connecting groove 10 is provided with a second sealing ring 12, the outer wall of the first sealing gasket 3 is provided with a first sealing groove 6, the outer wall of the first sealing gasket 3 is positioned inside the first connecting groove 4, the first sealing ring 5 is positioned inside the first sealing groove 6, the inner wall of the first sealing gasket 3 is provided with a second sealing groove 11, the inner wall of the first sealing gasket 3 is positioned inside the second connecting groove 10, the second sealing ring 12 is positioned, the first elastic sheet 7 is located on one side of the second elastic sheet 9, and fixing sheets 8 are arranged at two ends of the first elastic sheet 7 and the second elastic sheet 9.

In order to facilitate adding lubricating oil to the bearing, in this embodiment, preferably, the outer wall of the outer sleeve 1 is provided with a first fixing groove 13, the bottom end of the first fixing groove 13 is provided with a second fixing groove 14, the bottom end of the second fixing groove 14 is provided with an injection port 17, the bottom end of the first fixing groove 13 is provided with a third sealing gasket 21, the top end surface of the third sealing gasket 21 is provided with a third sealing groove 19, the bottom end of the first fixing groove 13 is provided with a second sealing gasket 18, the first fixing groove 13 is internally provided with a sealing nut 15, the bottom end of the sealing nut 15 is respectively provided with a sealing screw 16 and a third sealing ring 20, the sealing screw 16 is located inside the third sealing ring 20, the third sealing ring 20 is located inside.

In order to fix the first sealing ring 5, in this embodiment, preferably, the first sealing ring 5 is fixedly connected to the outer sleeve 1, and the first sealing ring 5 is tightly attached to the first sealing gasket 3 through the first sealing groove 6.

In order to fix the second sealing ring 12, in this embodiment, it is preferable that the second sealing ring 12 is fixedly connected to the inner sleeve 2, and the second sealing ring 12 is tightly attached to the first sealing gasket 3 through the second sealing groove 11.

In order to prevent the first elastic piece 7 and the second elastic piece 9 from breaking the first gasket 3, in the present embodiment, it is preferable that the first elastic piece 7 and the second elastic piece 9 are fixedly connected to the fixing piece 8, and the length of the first elastic piece 7 is one point and one time of the length of the second elastic piece 9.

In order to facilitate the installation of the first gasket 3, in the present embodiment, it is preferable that the inner wall side of the first gasket 3 is an inclined surface, and the inner wall side of the second gasket 12 is an inclined surface.

In order to fix the sealing screw 16, in this embodiment, it is preferable that the third sealing gasket 21 is fixedly connected to the first fixing groove 13, an inner diameter of the third sealing gasket 21 is equal to an inner diameter of the second fixing groove 14, the second sealing gasket 18 is fixedly connected to the second fixing groove 14, and an inner diameter of the second sealing gasket 18 is equal to an inner diameter of the injection port 17.

In order to improve the connection sealing performance between the seal screw 16 and the second fixing groove 14, in this embodiment, it is preferable that the third seal ring 20 and the seal screw 16 are both fixedly connected to the seal nut 15, the seal screw 16 is fixedly connected to the second fixing groove 14 through a thread, the seal nut 15 is tightly attached to the first fixing groove 13 through the third seal gasket 21, and the seal screw 16 is tightly attached to the second fixing groove 14 through the second seal gasket 18.

The utility model discloses a theory of operation and use flow: after the device is finished, a first sealing gasket 3 is additionally arranged between an outer sleeve 1 and an inner sleeve 2, when the first sealing gasket 3 needs to be installed, the first sealing gasket 3 is moved, a first sealing groove 6 is driven by the first sealing gasket 3 to move, the outer wall of the first sealing gasket 3 is placed in a first connecting groove 4, the first sealing groove 6 is aligned with a first sealing ring 5, after the installation, the inner wall of the first sealing gasket 3 is moved, a second sealing groove 11 is driven by the first sealing gasket 3 to move, the inner wall of the first sealing gasket 3 is placed in a second connecting groove 10, when the inclined surface on one side of the inner wall of the first sealing gasket 3 is contacted with the inclined surface on one side of the inner wall of the second sealing ring 12, the first sealing gasket 3 is pressed, the first sealing gasket 3 is deformed under the action of the inclined surface and the force, and the first sealing gasket 3 simultaneously drives a first elastic sheet 7 and a second elastic sheet 9 to deform, when the first side of the inner wall of the first sealing gasket 3 slides through the second sealing ring 12, and the second sealing groove 11 contacts with the second sealing ring 12, under the elastic action of the first elastic sheet 7 and the second elastic sheet 9, the first elastic sheet 7 and the second elastic sheet 9 drive the first sealing gasket 3 to reset, so that the inner wall of the first sealing gasket 3 is tightly attached to the second connecting groove 10, the outer wall of the first sealing gasket 3 is tightly attached to the first connecting groove 4, the second sealing groove 11 is tightly attached to the second sealing ring 12, the first sealing ring 5 is tightly attached to the first sealing groove 6, under the action of the first elastic sheet 7 and the second elastic sheet 9, the connection sealing performance between the first sealing gasket 3 and the outer sleeve 1 and the inner sleeve 2 is improved, the phenomenon that suspended foreign matters in lubricating oil easily enter the bearing is effectively avoided, the service life of the bearing is prolonged, by arranging the first fixing groove 13 on the outer wall surface of the outer sleeve 1, when needs are to bearing inside lubricating oil addition, need lift sealing screw 16 off earlier, rotate sealing nut 15 with extracting tool, drive sealing screw 16 by sealing nut 15 and rotate, sealing screw 16 is under the screw thread effect, make sealing screw 16 constantly rise, when sealing screw 16 leaves second fixed slot 14 inside completely, accomplish the dismantlement to sealing screw 16, then fill in the second fixed slot 14 inside with annotating oil pipe again, inside lubricating oil passes through injection port 17 entering bearing, the operation is accomplished, the staff of having been convenient for adds lubricating oil to the bearing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gearbox sealed bearing, includes overcoat (1), first sealed pad (3) and endotheca (2), its characterized in that: the outer sleeve (1) is positioned outside the inner sleeve (2), the first sealing gasket (3) is positioned between the outer sleeve (1) and the inner sleeve (2), first connecting grooves (4) are respectively formed in two sides of the inner wall of the outer sleeve (1), a first sealing ring (5) is arranged on the inner wall of each first connecting groove (4), second connecting grooves (10) are respectively formed in two sides of the outer wall of the inner sleeve (2), second sealing rings (12) are arranged on the inner walls of the second connecting grooves (10), a first sealing groove (6) is formed in the outer wall of the first sealing gasket (3), the outer wall of the first sealing gasket (3) is positioned inside the first connecting grooves (4), the first sealing rings (5) are positioned inside the first sealing grooves (6), a second sealing groove (11) is formed in the inner wall of the first sealing gasket (3), and the inner wall of the first sealing gasket (3) is positioned inside the second connecting grooves (, the second sealing ring (12) is located inside the second sealing groove (11), the first sealing gasket (3) is internally provided with a first elastic sheet (7) and a second elastic sheet (9) respectively, the first elastic sheet (7) is located on one side of the second elastic sheet (9), and both ends of the first elastic sheet (7) and the second elastic sheet (9) are provided with fixing sheets (8).

2. A gearbox seal bearing according to claim 1, wherein: a first fixing groove (13) is formed in the outer wall of the outer sleeve (1), a second fixing groove (14) is formed in the bottom end of the first fixing groove (13), the bottom end of the second fixing groove (14) is provided with an injection port (17), the bottom end of the first fixing groove (13) is provided with a third sealing gasket (21), the top end surface of the third sealing gasket (21) is provided with a third sealing groove (19), a second sealing gasket (18) is arranged at the bottom end of the first fixing groove (13), a sealing nut (15) is arranged inside the first fixing groove (13), the bottom end of the sealing nut (15) is respectively provided with a sealing screw rod (16) and a third sealing ring (20), the sealing screw (16) is located on the inner side of a third sealing ring (20), the third sealing ring (20) is located inside a third sealing groove (19), and the sealing screw (16) is located inside a second fixing groove (14).

3. A gearbox seal bearing according to claim 1, wherein: first sealing ring (5) and overcoat (1) fixed connection, first sealing ring (5) closely laminate through first seal groove (6) and first sealed pad (3).

4. A gearbox seal bearing according to claim 1, wherein: second sealing ring (12) and endotheca (2) fixed connection, second sealing ring (12) closely laminate through second seal groove (11) and first sealed pad (3).

5. A gearbox seal bearing according to claim 1, wherein: the first elastic piece (7) and the second elastic piece (9) are fixedly connected with the fixing piece (8), and the length of the first elastic piece (7) is one point of the length of the second elastic piece (9) by one time.

6. A gearbox seal bearing according to claim 1, wherein: one side of the inner wall of the first sealing gasket (3) is an inclined plane, and one side of the inner wall of the second sealing ring (12) is an inclined plane.

7. A gearbox seal bearing according to claim 2, wherein: third sealed pad (21) and first fixed slot (13) fixed connection, third sealed pad (21) internal diameter is unanimous with second fixed slot (14) internal diameter, second sealed pad (18) and second fixed slot (14) fixed connection, second sealed pad (18) internal diameter is unanimous with injection mouth (17) internal diameter.

8. A gearbox seal bearing according to claim 2, wherein: third sealing ring (20) and sealing screw (16) all with sealing nut (15) fixed connection, sealing screw (16) are through screw thread and second fixed slot (14) fixed connection, sealing nut (15) are closely laminated through third sealed pad (21) and first fixed slot (13), sealing screw (16) are closely laminated through second sealed pad (18) and second fixed slot (14).